From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Internal request to order two specific types of sparking plugs.
| Identifier | ExFiles\Box 58\2\ Scan263 | |
| Date | 3rd December 1935 | |
| Roy.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Wst. 86000. (handwritten) Hs{Lord Ernest Hives - Chair}/Wst.1/MA.3.12.35. SPARKING PLUGS. Will you please order for us to order No.54200 - 48 K.L.G. V7/3B plugs and to order No.54317 - 48 Lodge R114 plugs. Hs{Lord Ernest Hives - Chair}/Wst. | ||